Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.921167E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:13:10+0800
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    1 Object 1

    AOE ID 30837
    NORAD ID 30837
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 61553
    NORAD ID 61553
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB QIANFAN-20
    Time of Closest Approach 2026-09-12T19:21:53+0000
    Collision Probability (Pc) 1.921167E-5
    Conjunction Distance (km) 1.103 km
    Relative Speed (km/s) 14.677 km/s
    Conjunction Risk Parameters R (Radial): -0.961 | I (In-track): -0.059 | C (Cross-track): 0.537
    Collision Risk Index (CRI) 0.61
    X Position (km) 2669.919 2669.128
    Position Y (km) 2714.692 2714.645
    Position Z (km) -6171.736 -6170.969
    Velocity X (km/s) -2.703 4.238
    Velocity Y (km/s) -5.789 4.668
    Velocity Z (km/s) -3.723 3.885

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB QIANFAN-20
    Semimajor Axis (a) 7221.031 km 7240.702 km
    Eccentricity (e) 0.003358 0.000570
    Inclination (i) 98.7039° 88.9836°
    RAAN 238.2930° 47.3089°
    Perigee Argument 76.3494° 171.7405°
    Mean Anomaly (M) 296.6880° 188.3874°
    Apogee 867.144 km 866.693 km
    Perigee 818.644 km 858.437 km
    Orbit Epoch 2026-09-11T04:57:30+0000 2026-09-11T06:08:47+0000

    FENGYUN 1C DEB & QIANFAN-20 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & QIANFAN-20 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & QIANFAN-20 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & QIANFAN-20 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-20Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data